The description and use of the sector, crosse-staffe, and other instruments : with a canon of artificiall Sines and Tangents, and the use thereof in astronomie, navigation, dialling and fortification .. (1636)
Gunter, Edmund, 1581-1626 · London : Printed by William Iones for Iames Bowler · leaf 209
ne A £, reprefenting. the parallell ofthe pface from whence I depart. i J take 6 gr. for the difference oflongitude, either outof the line oiinchts^ allowing halfe an inch for every degree,or out of the beginning of the AderUUn line; (for there themeridian degrees differ very little from the… … 4 I take the difference of the latitude from jo^r.to sigr*$om. out of the meridian line,and prick it down in the meri-dians from A vnto -#/,and from E to D, and draw the rightlincMDfbrtheparallellofthe fecond place, and the rightline A D for the line of diftance betweene both places: Co theangle MA…
Astronomy · Puritans
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